Chemistry Basics

5. The model of the atom that has electrons orbiting the nucleus.
7. This is the last name of the person who had the first widely accepted atomic theory.
9. The state that electrons are in when they gain energy and move away from the nucleus.
12. The name for rows on the periodic table.
15. Some elements located on either side of the "stair step" on the periodic table.
17. A solution that is full of solute.
18. A positively charged particle in the atom.
19. Discovered the nucleus in his famous Gold Foil experiment.
22. The scientist who suggested electrons were in energy levels orbiting the nucleus.
23. A substance that has one thing that traps and suspends another.
24. The smallest subatomic particle, found in energy levels around the nucleus.
25. A measure of the amount of mass in a given amount of volume.

1. A measure of how fast something will heat up or cool down.
2. The name for elements in the first group on the periodic table.
3. The name for the electrons in the outermost energy level.
4. The model of the atom that describes electrons as being tiny and indivisible.
6. This element has 12 protons.
8. The state that electrons are in when they are in the lowest energy level possible.
10. A process that uses boiling points to separate substances.
11. These elements have full outermost shells and do not react.
13. Atoms of the same element with a different number of neutrons.
14. The model of the atom that is mathematical.
16. Like charges do this to each other.
20. A place in the atom where pairs of electrons are likely to be found.
21. The father of the modern periodic table.